Dr William Wadsworth
Profile
Biographical Information
- Lecturer/Royal Society University Research Fellow, University of Bath, 1999-
- Research Fellow, University of Otago, New Zealand, 1998-1999
- D.Phil. (Oxford) 1997
- B.A. (Exeter College, Oxford) 1993
Research Interests
I design, fabricate and study Photonic Crystal Fibres (PCFs). These optical fibres contain a microstructure on the scale of the wavelength of light which allows unprecedented control of the propagation of light in the fibre. My particular interests are in using PCFs for new lasers and light sources, with applications from fundamental metrology and quantum information to imaging for medical and life sciences. Further details can be found in the Centre for Photonics and Photonic Materials web pages.
Publications
Inam, F.A., Grogan, M.D.W., Rollings, M., Gaebel, T., Say, J.M., Bradac, C., Birks, T.A., Wadsworth, W.J., Castelletto, S., Rabeau, J.R. and Steel, M.J., 2013. Emission and nonradiative decay of nanodiamond NV centers in a low refractive index environment. ACS Nano, 7 (5), pp. 3833-3843.
Bell, B.A., Tame, M.S., Clark, A.S., Nock, R.W., Wadsworth, W.J. and Rarity, J.G., 2013. Experimental characterization of universal one-way quantum computing. New Journal of Physics, 15, 053030.
Inam, F.A., Grogan, M.D.W., Rollings, M., Gaebel, T., Castelletto, S., Say, J.M., Bradac, C., Birks, T. A., Wadsworth, W. J., Rabeau, J.R. and Steel, M.J., 2013. NV center emission in a substrate free low index environment. Proceedings of SPIE, 8635, 86350F.
Wadsworth, W. J., Rollings, M., Bateman, S. A., Mosley, P. J. and Birks, T. A., 2012. Silica-air structures for optical fibres. In: 2012 14th International Conference on Transparent Optical Networks (ICTON). IEEE.
Lefrancois, S., Fu, D., Holtom, G. R., Kong, L., Wadsworth, W. J., Schneider, P., Herda, R., Zach, A., Sunney Xie, X. and Wise, F. W., 2012. Fiber four-wave mixing source for coherent anti-Stokes Raman scattering microscopy. Optics Letters, 37 (10), pp. 1652-1654.
Yu, F., Wadsworth, W. J. and Knight, J. C., 2012. Low loss silica hollow core fibers for 3–4 μm spectral region. Optics Express, 20 (10), pp. 11153-11158.
Ding, W., Staines, O. K., Hobbs, G. D., Gorbach, A. V., De Nobriga, C., Wadsworth, W. J., Knight, J. C., Skryabin, D. V., Strain, M. J., Sorel, M. and De La Rue, R. M., 2012. Modulational instability in a silicon-on-insulator directional coupler: Role of the coupling-induced group velocity dispersion. Optics Letters, 37 (4), pp. 668-670.
Bell, B., Clark, A. S., Tame, M. S., Halder, M., Fulconis, J., Wadsworth, W. J. and Rarity, J. G., 2012. Experimental characterization of photonic fusion using fiber sources. New Journal of Physics, 14, 023021.
Lefrancois, S., Fu, D., Holtom, G., Kong, L., Wadsworth, W., Schneider, P., Herda, R., Zach, A., Xie, X. S. and Wise, F. W., 2012. Towards a tunable fiber source for coherent Raman imaging. Proceedings of the SPIE, 8226, 822620.
Yarrow, M. J., Wadsworth, W. J., Lavoute, L., Clowes, J. R. and Grudinin, A. B., 2012. Power-scalable tunable UV, visible, and NIR generation from an ultrafast fiber OPA based on four wave mixing in PCF. Proceedings of the SPIE, 8240, 824005.
Wadsworth, W. J., Knight, J. and Birks, T., 2012. State-of-the-art photonic crystal fiber. Optics and Photonics News, 23 (3), pp. 24-31.
Mosley, P. J., Bateman, S. A., Lavoute, L. and Wadsworth, W. J., 2011. Low-noise, high-brightness, tunable source of picosecond pulsed light in the near-infrared and visible. Optics Express, 19 (25), pp. 25337-25345.
Clark, A., Bell, B., Fulconis, J., Halder, M. M., Cemlyn, B., Alibart, O., Xiong, C. L., Wadsworth, W. and Rarity, J. G., 2011. Intrinsically narrowband pair photon generation in microstructured fibres. New Journal of Physics, 13, 065009.
Hooper, L. E., Mosley, P. J., Muir, A. C., Yu, F., Mangan, B. J., Wadsworth, W. J., Knight, J. C. and Dudley, J. M., 2011. Coherent widely tunable source of sub-picosecond pulses using all-normal dispersion fiber supercontinuum. In: 2011 7th International Workshop on Fibre and Optical Passive Components, WFOPC2011. Piscataway, NJ: IEEE.
Ding, W., Gorbach, A. V., Staines, O. K., De Nobriga, C. E., Hobbs, G. D., Wadsworth, W. J., Knight, J. C., Skryabin, D. V., Samarelli, A., Sorel, M. and De La Rue, R. M., 2011. Spatio-temporal nonlinear optics in arrays of subwavelength waveguides. In: 2011 Conference on Lasers and Electro-Optics: Laser Science to Photonic Applications, CLEO 2011. Piscataway, NJ: IEEE Computer Society.
Ding, W., Gorbach, A. V., Wadsworth, W. J., Knight, J. C., Skryabin, D. V., Strain, M. J., Sorel, M. and De La Rue, R. M., 2011. Time- and frequency-domain measurements of solitons in subwavelength silicon waveguides using cross-correlation. In: 2011 Conference on Lasers and Electro-Optics: Laser Science to Photonic Applications, CLEO 2011. Piscataway, NJ: IEEE Computer Society.
Hooper, L. E., Mosley, P. J., Muir, A. C., Wadsworth, W. J. and Knight, J. C., 2011. Coherent supercontinuum generation in photonic crystal fiber with all-normal group velocity dispersion. Optics Express, 19 (6), pp. 4902-4907.
Xiao, L., Grogan, M. D. W., Wadsworth, W. J., England, R. and Birks, T. A., 2011. Stable low-loss optical nanofibres embedded in hydrophobic aerogel. Optics Express, 19 (2), pp. 764-769.
Wadsworth, W. J., Grogan, M. D. W., Xiao, L. M., Rollings, M. D., England, R. and Birks, T. A., 2011. Aerogel-enhanced tapers and fibres. In: 2011 IEEE Winter Topicals, WTM 2011. Piscataway, NJ: IEEE Computer Society, pp. 193-194.
Clark, A., Bell, B., Halder, M., Fulconis, J., Tame, M. S., Kim, M. S., Wadsworth, W. J. and Rarity, J. G., 2011. Cluster state generation using fibre sources. In: 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC). Piscataway, NJ: IEEE.
Kannan, S., Bell, B., Clark, A., Wadsworth, W. J. and Rarity, J. G., 2011. Phase super-resolution using a photonic crystal fibre. In: 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC). Piscataway, NJ: IEEE.
Gorbach, A. V., Ding, W., Staines, O. K., De Nobriga, C. E., Hobbs, G. D., Wadsworth, W. J., Knight, J. C., Skryabin, D. V., Samarelli, A., Sorel, M. and De La Rue, R. M., 2011. Spatiotemporal nonlinear optics in arrays of subwavelength waveguides. In: 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC). Piscataway, NJ: IEEE.
Mosley, P. J., Huang, W. C., Welch, M. G., Mangan, B. J., Wadsworth, W. J. and Knight, J. C., 2010. Ultrashort pulse compression and delivery in a hollow-core photonic crystal fiber at 540 nm wavelength. Optics Letters, 35 (21), pp. 3589-3591.
Gorbach, A. V., Ding, W., Staines, O. K., De Nobriga, C. E., Hobbs, G. D., Wadsworth, W. J., Knight, J. C., Skryabin, D. V., Samarelli, A., Sorel, M. and De La Rue, R. M., 2010. Spatiotemporal nonlinear optics in arrays of subwavelength waveguides. Physical Review A - Atomic, Molecular, and Optical Physics, 82 (4), 041802.
Estudillo-Ayala, J. M., Mangan, B. J., Wadsworth, W. J. and Knight, J. C., 2010. Coupling efficiency and transmission through hollow-core photonic bandgap fibers. Proceedings of SPIE - The International Society for Optical Engineering, 7839, 78391j.
Wadsworth, W. J., 2010. Nonlinear wavelength conversion and pulse manipulation in photonic crystal fibres. In: 36th European Conference and Exhibition on Optical Communication. Piscataway, NJ: IEEE.
Lavoute, L., Knight, J. C., Dupriez, P. and Wadsworth, W. J., 2010. High power red and near-IR generation using four wave mixing in all integrated fibre laser systems. Optics Express, 18 (15), pp. 16193-16205.
Birks, T. A., Grogan, M. D. W., Xiao, L. M., Rollings, M. D., England, R. and Wadsworth, W. J., 2010. Silica aerogel in optical fibre devices. In: 12th International Conference on Transparent Optical Networks, ICTON 2010. IEEE.
Birks, T., Grogan, M., Xiao, L., Rollings, M., England, R. and Wadsworth, W., 2010. Silica aerogel in optical fibre devices. In: 12th International Conference on Transparent Optical Networks, ICTON 2010, 2010-06-27 - 2010-07-01, Munich.
Xiao, L., Grogan, M. D. W., England, R., Wadsworth, W. J. and Birks, T. A., 2010. Aerogel package for fused fibre couplers. In: Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010. New York: Association for Computing Machinery (ACM).
Hooper, L. E., Mosley, P. J., Muir, A. C., Wadsworth, W. J. and Knight, J. C., 2010. All-normal dispersion photonic crystal fiber for coherent supercontinuum generation. In: Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010. New York: Association for Computing Machinery (ACM).
Xiao, L., Grogan, M. D. W., England, R., Wadsworth, W. J. and Birks, T. A., 2010. Gas sensing with a sub-micron tapered fibre embedded in hydrophobic aerogel. In: Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010. New York: Association for Computing Machinery (ACM).
Grogan, M. D. W., Rollings, M. D., Xiao, L., Wadsworth, W. J., England, R., Maier, S. A. and Birks, T. A., 2010. Plasmonic aerogel doped with gold nanoparticles. In: Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010. New York: Association for Computing Machinery (ACM).
Rollings, M. D., Grogan, M. D. W., Xiao, L. M., England, R., Birks, T. A. and Wadsworth, W. J., 2010. Supercontinuum generation in tapered fibres embedded in silica aerogel. In: Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010. New York: Association for Computing Machinery (ACM).
De Nobriga, C. E., Hobbs, G. D., Wadsworth, W. J., Knight, J. C., Skryabin, D. V., Samarelli, A., Sorel, M. and De La Rue, R. M., 2010. Supermode dispersion and waveguide-to-slot mode transition in arrays of silicon-on-insulator waveguides. Optics Letters, 35 (23), pp. 3925-3927.
De Nobriga, C. E., Wadsworth, W. J., Gorbach, A. V., Skryabin, D. V., Knight, J. C., Samarelli, A., Sorel, M. and De La Rue, R. M., 2010. Supermode dispersion of strongly coupled silicon-on-insulator waveguides. In: Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010. New York: Association for Computing Machinery (ACM).
Delgado-Pinar, M., Li, Y., Bird, D. M., Birks, T. A. and Wadsworth, W. J., 2010. Third harmonic generation in uniform fibre nanotapers via intermodal coupling. In: Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010. New York: Association for Computing Machinery (ACM).
Ding, W., Gorbach, A. V., Wadsworth, W. J., Knight, J. C., Skryabin, D., Strain, M. J., Sorel, M. and De la Rue, R. M., 2010. Time and frequency domain measurements of solitons in subwavelength silicon waveguides using a cross-correlation technique. Optics Express, 18 (25), pp. 26625-26630.
Huang, W., Welch, M. G., Mosley, P. J., Mangan, B. J., Wadsworth, W. J. and Knight, J. C., 2010. Ultrashort pulse delivery in hollow-core photonic bandgap fiber at 540 nm. In: Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010. New York: Association for Computing Machinery (ACM).
Xiao, L. M., Grogan, M. D. W., Leon-Saval, S. G., Williams, R., England, R., Wadsworth, W. J. and Birks, T. A., 2009. Tapered fibers embedded in silica aerogel. Optics Letters, 34 (18), pp. 2724-2726.
Welch, M., Cook, K., Correa, R. A., Gerome, F., Wadsworth, W., Gorbach, A., Skryabin, D. and Knight, J., 2009. Solitons in Hollow Core Photonic Crystal Fiber: Engineering Nonlinearity and Compressing Pulses. Journal of Lightwave Technology, 27 (11), pp. 1644-1652.
McMillan, A. R., Fulconis, J., Halder, M., Xiong, C., Rarity, J. G. and Wadsworth, W. J., 2009. Narrowband high-fidelity all-fibre source of heralded single photons at 1570 nm. Optics Express, 17 (8), pp. 6156-6165.
Halder, M., Fulconis, J., Cemlyn, B., Clark, A., Xiong, C., Wadsworth, W. J. and Rarity, J. G., 2009. Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources. Optics Express, 17 (6), pp. 4670-4676.
Clark, A. S., Fulconis, J., Rarity, J. G., Wadsworth, W. J. and O'Brien, J. L., 2009. All-optical-fiber polarization-based quantum logic gate. Physical Review A - Atomic, Molecular, and Optical Physics, 79 (3), 030303.
Welch, M. G., De Nobriga, C. E., Correa, R. A., Wadsworth, W. J. and Knight, J. C., 2009. Accurate measurement of the dispersion of hollow-core fibers using a scalable technique. Optics Express, 17 (11), pp. 9006-9012.
Clark, A. S., Fulconis, J., Rarity, J. G., Wadsworth, W. J. and O'Brien, J. L., 2009. All-optical-fiber polarization-based quantum logic gate. Physical Review A - Atomic, Molecular, and Optical Physics, 79 (3), 030303.
Nandi, P., Chen, Z., Witkowska, A., Wadsworth, W. J., Birks, T. A. and Knight, J. C., 2009. Characterization of a photonic crystal fiber mode converter using low coherence interferometry. Optics Letters, 34 (7), pp. 1123-1125.
Xiong, C., Chen, Z. and Wadsworth, W., 2009. Dual-wavelength-pumped supercontinuum generation in an all-fiber device. Journal of Lightwave Technology, 27 (11), pp. 1638-1643.
Dupriez, P., Gerome, F., Knight, J. C., Clowes, J. and Wadsworth, W. J., 2009. Tunable High-energy femtosecond soliton fiber laser based on hollowcore photonic bandgap fiber. Proceedings of SPIE - The International Society for Optical Engineering, 7195, 719511.
Xiong, C. and Wadsworth, W. J., 2008. Polarized supercontinuum in birefringent photonic crystal fibre pumped at 1064 nm and application to tuneable visible/UV generation. Optics Express, 16 (4), pp. 2438-2445.
Cook, K., Welch, M. G., Gerome, F., George, A. K., Wadsworth, W. J. and Knight, J. C., 2008. Compression of picosecond optical pulses in tapered hollow-core photonic bandgap fiber. In: 2008 Conference on Lasers and Electro-Optics & Quantum Electronics and Laser Science Conference. Vol. 1-9. IEEE, pp. 1977-1978.
Xiong, C., Mcmillan, A. R., Alibart, O., Fulconis, J., Rarity, J. G. and Wadsworth, W., 2008. Fibre source of heralded single photons at 1550nm. In: 2008 Conference on Lasers and Electro-Optics & Quantum Electronics and Laser Science Conference. Vol. 1-9. IEEE, pp. 3040-3041.
Xiong, C. and Wadsworth, W. J., 2008. Polarized supercontinuum from a 1064nm microchip laser and application to tunable visible/UV generation in BIBO. In: 2008 Conference on Lasers and Electro-Optics & Quantum Electronics and Laser Science Conference. Vol. 1-9. IEEE, pp. 41-42.
Leon-Saval, S. G., Birks, T. A., Witkowska, A., Ke, L. and Wadsworth, W. J., 2008. Post-processing and tapering of PCFs. In: IEEE/LEOS Winter Topical Meeting Series, 2008-01-01.
Ding, W., Benton, C., Gorbach, A. V., Wadsworth, W. J., Knight, J. C., Skryabin, D. V., Gnan, M., Sorrel, M. and De La Rue, R. M., 2008. Solitons and spectral broadening in long silicon-on-insulator photonic wires. Optics Express, 16 (5), pp. 3310-3319.
